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import is from '@sindresorhus/is';
import type * as bunyan from 'bunyan';
import { once, reset as onceReset } from './once';
import { getRemappedLevel } from './remap';
import type { Logger } from './types';
import { getMessage, toMeta, withSanitizer } from './utils';
const loggerLevels: bunyan.LogLevelString[] = [
'trace',
'debug',
'info',
'warn',
'error',
'fatal',
];
type LoggerFunction = (p1: string | Record<string, any>, p2?: string) => void;
export class RenovateLogger implements Logger {
readonly logger: Logger = { once: { reset: onceReset } } as any;
readonly once = this.logger.once;
constructor(
private readonly bunyanLogger: bunyan,
private context: string,
private meta: Record<string, unknown>,
) {
for (const level of loggerLevels) {
this.logger[level] = this.logFactory(level) as never;
this.logger.once[level] = this.logOnceFn(level);
}
}
trace(p1: string): void;
trace(p1: Record<string, any>, p2?: string): void;
trace(p1: string | Record<string, any>, p2?: string): void {
this.log('trace', p1, p2);
}
debug(p1: string): void;
debug(p1: Record<string, any>, p2?: string): void;
debug(p1: string | Record<string, any>, p2?: string): void {
this.log('debug', p1, p2);
}
info(p1: string): void;
info(p1: Record<string, any>, p2?: string): void;
info(p1: string | Record<string, any>, p2?: string): void {
this.log('info', p1, p2);
}
warn(p1: string): void;
warn(p1: Record<string, any>, p2?: string): void;
warn(p1: string | Record<string, any>, p2?: string): void {
this.log('warn', p1, p2);
}
error(p1: string): void;
error(p1: Record<string, any>, p2?: string): void;
error(p1: string | Record<string, any>, p2?: string): void {
this.log('error', p1, p2);
}
fatal(p1: string): void;
fatal(p1: Record<string, any>, p2?: string): void;
fatal(p1: string | Record<string, any>, p2?: string): void {
this.log('fatal', p1, p2);
}
addStream(stream: bunyan.Stream): void {
this.bunyanLogger.addStream(withSanitizer(stream));
}
childLogger(): RenovateLogger {
return new RenovateLogger(
this.bunyanLogger.child({}),
this.context,
this.meta,
);
}
get logContext(): string {
return this.context;
}
set logContext(context: string) {
this.context = context;
}
setMeta(obj: Record<string, unknown>): void {
this.meta = { ...obj };
}
addMeta(obj: Record<string, unknown>): void {
this.meta = { ...this.meta, ...obj };
}
removeMeta(fields: string[]): void {
for (const key of Object.keys(this.meta)) {
if (fields.includes(key)) {
delete this.meta[key];
}
}
}
private logFactory(_level: bunyan.LogLevelString): LoggerFunction {
return (p1: string | Record<string, any>, p2?: string): void => {
const meta: Record<string, unknown> = {
logContext: this.context,
...this.meta,
...toMeta(p1),
};
const msg = getMessage(p1, p2);
let level = _level;
if (is.string(msg)) {
const remappedLevel = getRemappedLevel(msg);
// istanbul ignore if: not easily testable
if (remappedLevel) {
meta.oldLevel = level;
level = remappedLevel;
}
this.bunyanLogger[level](meta, msg);
} else {
this.bunyanLogger[level](meta);
}
};
}
private logOnceFn(level: bunyan.LogLevelString): LoggerFunction {
const logOnceFn = (p1: string | Record<string, any>, p2?: string): void => {
once(() => {
const logFn = this[level].bind(this); // bind to the instance.
if (is.string(p1)) {
logFn(p1);
} else {
logFn(p1, p2);
}
}, logOnceFn);
};
return logOnceFn;
}
private log(
level: bunyan.LogLevelString,
p1: string | Record<string, any>,
p2?: string,
): void {
const logFn = this.logger[level];
if (is.string(p1)) {
logFn(p1);
} else {
logFn(p1, p2);
}
}
}
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